WO2021116512A1

WO2021116512A1 - Filter for a brake device

Info

Publication number: WO2021116512A1
Application number: PCT/ES2020/070753
Authority: WO
Inventors: José María GÓMEZ BENEITEZ; Fernando GÓMEZ DE SEBASTIÁN
Original assignee: Brl Brake Solutions, S.L.
Priority date: 2019-12-11
Filing date: 2020-12-01
Publication date: 2021-06-17
Also published as: ES1242769Y; US20220381306A1; BR112022011036A2; KR20220109422A; ES1242769U; EP4075007A1; JP2023505447A; CN114787529A; EP4075007A4

Abstract

The invention relates to a filter for a brake device, comprising a case (1, 1'), a cylindrical tubular filtering element (2) and a dismantlable axial fastening system. The filtering element (2) is located inside the case (1, 1') and the case (1, 1') includes a cylindrical tubular lateral wall (3) having two opposite end edges, a first and a second. The filtering element (2) sits on an internal surface of the lateral wall (3) of the case (1, 1'). The dismantlable axial fastening system provides axial fastening of the filter when same is assembled in the brake device (F), axial fastening of the filtering element (2) inside the case (1, 1'), and means for assembling and dismantling the filter. The purpose of the filter is to collect all the particles harmful to health that are released each time the brake device brakes, preventing said particles from being transferred to the air that is breathed.

Description

DESCRIPTION

FILTER FOR BRAKE DEVICE Object of the invention

The present invention refers to a filter for a brake device whose purpose is to collect all the particles harmful to health that are released during each braking of the brake device, preventing them from being transferred to the air that is breathed, so that every certain number kilometers of the vehicle that incorporates the filter of the invention, you can easily change a filter element that is the element that is responsible for retaining harmful particles. There is even the possibility that the filter element is washable. It is noted that once the filter of the invention is assembled, the brake device remains encapsulated within an interior space of the filter.

Technical problem to be solved and background of the invention

At present, the serious problem of pollution generated by the particles of the brakes that are emitted into the air, especially in large cities, is well known, as much or more than the combustion of engines, releasing particles smaller than 10 microns into the air, that penetrate the human body causing serious health consequences.

On the other hand, drastic measures are being taken to protect the environment with regard to the combustion of gases from combustion engines, but on the other hand, very little or nothing is said about the pollution generated by the brakes, when they they can emit into the air, in a big city, more than 10,000 Tm of brake lining particles; where these pollutant particles are later inhaled by people. Obviously, practically no one talks about this problem of pollution generated by the brakes because until now there was no solution to this problem, although the large vehicle brands are already beginning to become aware of the problem. The explanation for why there is no solution is simple: a brake disc will not it can totally encapsulate because it needs to be air cooled.

And everyone knows the also serious problem that is generated in the brakes when there is an excess of temperature in a brake disc. Therefore, a disc brake cannot be encapsulated because it is incompatible with its need for air cooling.

The concern in this regard is taking center stage in all the major car brands and they are designing different systems, with the limitations that they are not capable of filtering all the harmful particles released from the brakes, obtaining very poor results.

In the brake device of patent P 201731144, the cooling of the brake disc is liquid by means of recirculation through a radiator of coolant through tubes, the cooling capacity of the brake disc being such that it is subjected to a certification test (Grosslockner), consisting of a sustained braking of around 40 minutes, does not exceed the temperature of 53 ° C; when a conventional brake disc exceeds 500 ° C.

Description of the invention

In order to achieve the objectives and avoid the drawbacks mentioned in the previous sections, the invention proposes a filter for a brake device comprising a housing, a cylindrical-tubular filter element and a removable axial clamping system.

Inside the casing the filter element is located and fitted; wherein the housing includes at least one cylindrical-tubular side wall having two opposite end edges: first and second. The filter element sits on an internal surface of the side wall of the housing.

The removable axial clamping system provides axial clamping of the filter when mounted on the brake device; provides axial clamping of the filter element within the housing; and provides the necessary means to be able to mount and dismount the filter. In a first embodiment of the invention, the cylindrical-tubular casing is a one-piece body and includes an annular bottom that is integrally attached to the first end edge of the side wall forming part of the casing itself, while at the second end edge a support ring is removably coupled to the casing; where the annular bottom and the support ring constitute the removable axial clamping system.

The support ring includes an annular groove into which the second end edge of the housing fits; where the support ring is detachably anchored to the casing by means of hooking mechanisms.

Each of the latching mechanisms comprises a tilting blade, an articulated frame hingedly connected to the tilting blade, and a fixed flange on which the hinged frame engages in an anchoring position of the latching mechanism; where each tilting blade is hingedly coupled to a projecting appendix integral with the support ring, while the fixed flange is integral with the casing.

Both the annular bottom and the support ring include through holes aligned with the axial channels of the filter element.

In a second embodiment of the invention, the casing comprises two parts that are joined by a hinged joint, as well as including hooking mechanisms (equivalent to those described in the first embodiment) that are configured to hook the two parts together. of said casing and thus stably assembling the casing structure with the cylindrical-tubular configuration; where said latching mechanisms are located in proximity to facing edges of the two parts of the casing

The filter of the second embodiment comprises two opposing support rings that constitute the removable axial clamping system of the filter when it is mounted on the brake device; where the support rings are positioned in parallel planes inside the casing in contact with the internal surface of the casing; where said contact is close to the two opposite extreme edges: first and second of the housing. The support rings of the second embodiment include through holes that are aligned with the axial channels of the filter element. The support ring coupled to the housing of the first embodiment and one of the support rings coupled to the housing of the second embodiment of the invention include pairs of perforations that are configured to engage sleeves therein.

The side walls of the housings include holes throughout.

Below, to facilitate a better understanding of this specification and forming an integral part thereof, a series of figures is attached in which the object of the invention has been represented by way of illustration and not limitation. Brief description of the figures

Figure 1.- Shows a perspective view of the filter for a brake device, object of the invention, according to a first embodiment.

Figure 2.- Represents another perspective view of the filter of the invention shown in figure 1. Figure 3.- Shows an exploded perspective view of the filter for the brake device represented in the previous figures.

Figure 4.- Represents another exploded perspective view of the filter for the brake device of the invention according to a second embodiment different from that shown in the previous figures. Figure 5.- Shows a perspective view of a brake device.

Description of an embodiment of the invention

Considering the numbering adopted in the figures, the filter for the brake device F comprises a sheet metal casing 1, 1 ', a cylindrical-tubular filter element 2 and a removable axial clamping system that allows firstly mounting and dismounting the assembly of the filter of the invention in brake device F; secondly, it provides axial clamping of the filter when mounted on the filter device; and thirdly it provides an axial clamping to the filter element 2. Inside the casing 1, 1 'the filtering element 2 is located and fits; where the casing 1, 1 'includes at least one cylindrical-tubular side wall 3 having two opposite end edges: first and second. On an internal surface of the side wall 3 of the housing 1, 1 'sits the filter element 2. Said side wall 3 of the housing 1, 1' includes a set of holes 4.

Once the filter of the invention is mounted around the brake device F, it is encapsulated within an interior space of the filter; where said interior space is radially delimited by the filter element 2 of cylindrical-tubular configuration.

The filter element 2 is configured to retain the polluting particles that are released from the brake device F housed within the internal space delimited by the filter element 2, such as the brake device described in the patent of invention P 201731144; where said braking device externally includes projections that fit into axial pipes 5 located on the filtering element 2.

In a first embodiment of the invention shown in Figures 1 to 3, the cylindrical-tubular casing 1 is a one-piece body and includes an annular bottom 6 in the form of a washer that is integrally attached to the first end edge of the side wall 3 forming part of the casing 1 itself, while a support ring 7 is removably coupled to the second end edge of the casing 1.

For this, the support ring 7 includes an annular groove 8 in which the second end edge of the casing 1 fits. In addition, to secure the fastening of the support ring 7 on the casing 1, hooking mechanisms 9 are included, each of the which comprises a tilting blade 9a, an articulated frame 9b articulatedly connected to the tilting blade 9a, and a fixed flange 9c in which the articulated frame 9b engages in an anchoring position of the hooking mechanism 9.

Each tilting blade 9a is hingedly coupled to a projecting appendix integral with the support ring 7, while the fixed flange is integral with the casing 1.

In this first embodiment of the invention that we are describing, the system of removable axial clamping of the filter assembly is formed by the annular bottom 6 of the casing 1 and by the support ring 7; where both the annular bottom 6 and the support ring 7 include through holes 10, 11 aligned with the axial channels 5 of the filter element 2.

In a second embodiment of the invention shown in figure 4, the casing 1 'comprises two parts that are joined by means of a hinged joint 12, as well as including hooking mechanisms 9' like those described above to be able to hook together the two parts of said casing 1 'and to be able to stably assemble the cylindrical-tubular casing structure 1'. Said hooking mechanisms 9 'are located in proximity to facing edges of the two parts of the casing 1'.

In this second embodiment of the invention, the filter element 2 comprises two separate parts that come together when the filter is mounted around the brake device F; where in said mounted position the filter element 2 configures a cylindrical-tubular shape equivalent to that described in the first embodiment.

In the second embodiment of the invention, two opposing support rings 7 'are also included, which constitute the removable axial clamping system of the filter when it is mounted on the brake device F. For this, the support rings 7' are placed in parallel planes inside the casing 1 'in contact with the internal surface of the casing 1'; where said contact is close to the two opposite end edges: first and second of casing 1 '. The support rings 7 'include through holes 13, 14 aligned with the axial channels 5 of the filter element 2.

On the other hand, both the support ring 7 of the first embodiment and one of the support rings 7 'of the second embodiment of the invention, include pairs of perforations 15 that are configured to fit therein sleeves 16 to connect to conduits of cooling of the brake device described in patent P 201731144 which is the property of the same owner as the present invention.

Thus, the assembly of the casing 1, 1 'of drilled sheet together with the filter element (2) surrounds the brake device F, in such a way that all the particles that are released during each braking are deposited on said filter element 2 , preventing let them go on the air.

The filter, when it has been used for a number of kilometers, in a first option its filter element 2 is replaced by a new one, and the used filter element 2 can be recycled; and in a second option the filter element can be reused if it is washable. In this situation, the braking device of the aforementioned patent is once again in a position to continue braking and protecting the environment.

The protection of the invention also extends to the "soundproofing" of the noise generated by the brake device during each braking, and to the "protection of the brake device against external agents", such as dust, sand, small stones, etc. ..

In the design of the encapsulation of the brake device of the referenced patent, the easy replacement of the filter has been taken into account, which, once the wheel of a vehicle has been removed, exposes the encapsulation of the casing 1, 1 ', of In such a way that by activating the hooking mechanisms 9, 9 'by hand, the casing 1, 1' is released, being able to be manually extracted towards the outside, exposing the particle filter element 2, which in turn also extracts it towards the outside , allows its easy replacement, proceeding by the same method to its assembly.

In the figures you can see some descriptive, non-limiting examples of the encapsulation system fundamentally applicable to the brake device of the referenced patent P 201731144, and its design variants for easy replacement of the particle filter element 2, also depending on the arrangement for positioning said braking device; also highlighting that the filtering of harmful particles is 100%.

It is important to understand that the brake device of the referenced patent has the technical capacity to be installed both on the wheel (in a non-suspended way) and on the chassis of the vehicle (in a suspended way). The first embodiment of the invention would be suitable to be installed on the wheel of a vehicle, while the second embodiment of the invention could be installed in both ways.

It is important to understand that the brake device of the referenced patent P 201731144 It has the technical capacity to be installed both on the vehicle wheel (not suspended) and on the chassis of the vehicle (suspended); so that the first embodiment of the filter of the invention would be suitable to be installed on the wheel, while the second embodiment of the filter of the invention would be suitable to be installed in both ways.

Claims

1.- Filter for brake device, characterized in that:

- It comprises a casing (1, 1 '), a cylindrical-tubular filter element (2) and a removable axial clamping system;

- Inside the casing (1, 1 ') the filtering element (2) is located and fitted; where the casing (1, 1 ') includes at least one cylindrical-tubular side wall (3) having two opposite end edges: first and second; and where on an internal surface of the side wall (3) of the casing (1, 1 ') sits the filter element (2); wherein the removable axial clamping system provides an axial clamping of the filter when mounted on the brake device (F), provides an axial clamping of the filter element (2) inside the casing (1, 1 '), and provides the means to mount and remove the filter.

2.- Filter for brake device, according to claim 1, characterized in that the cylindrical-tubular casing (1) is a one-piece body and includes an annular bottom (6) that is integrally attached to the first end edge of the wall side (3) forming part of the casing itself (1), while a support ring (7) is removably coupled to the second end edge of the casing (1); where the annular bottom (6) and the support ring (7) constitute the removable axial clamping system.

3. Filter for a brake device, according to claim 2, characterized in that the support ring (7) includes an annular groove (8) in which the second end edge of the casing (1) fits; where the support ring (6) is detachably anchored to the casing by means of hooking mechanisms (9).

4. Filter for a brake device, according to claim 3, characterized in that each of the hooking mechanisms (9) comprises a tilting blade (9a), an articulated frame (9b) connected in an articulated manner to the tilting blade ( 9a), and a fixed flange (9c) in which the articulated frame (9b) hooks in an anchoring position of the hooking mechanism (9); where each tilting blade (9a) is hingedly coupled to a projecting appendix integral with the support ring (7), while the fixed flange (9c) is integral with the casing (1).

5.- Filter for brake device, according to any one of the claims above 2 to 4, characterized in that the annular bottom (6) and the support ring (7) include through holes (10, 11) aligned with axial channels (5) of the filter element (2).

6. Filter for a brake device, according to claim 1, characterized in that the casing (1 ') comprises two parts that are joined by a hinged joint (12), as well as including hooking mechanisms (9') which are configured to hook together the two parts of said casing (1 ') and thus stably assemble the casing structure (1') with the cylindrical-tubular configuration; where said hooking mechanisms (9 ') are located in proximity to facing edges of the two parts of the casing (1').

7. Filter for a brake device, according to claim 6, characterized in that it comprises two opposing support rings (7 ') that constitute the removable axial clamping system of the filter when it is mounted on the brake device; where the support rings (7 ') are placed in parallel planes inside the casing (1') in contact with the internal surface of the casing (1 '); where said contact is close to the two opposite end edges: first and second of the casing (1 ').

8. Filter for a brake device, according to claim 7, characterized in that the support rings (7 ') include through holes (13, 14) that are aligned with axial channels (5) of the filter element (2).

9. Filter for a brake device, according to any one of the preceding claims 2 or 7, characterized in that a support ring (7, 7 ') coupled to the casings (1, 1') includes pairs of perforations (15) that they are configured to fit sleeves (16) therein.

10. Filter for a brake device, according to any one of the preceding claims, characterized in that the side wall (3) of the casing (1, 1 ') includes a set of holes (4).